portage-ng / portage / llvm-runtimes / openmp-nvptx64-nvidia-cuda / 24.0.0.9999
pmerge --pretend --verbose
pmerge: error: no matching ebuilds: '=llvm-runtimes/openmp-nvptx64-nvidia-cuda-24.0.0.9999'

Wall time
0.409 s vs. 1.961 s for portage-ng